K&N washable, reusable Diesel Dryflow Air Filters feature a state-of-the-art design of layered; cotton & synthetic media engineered to improve airflow and capture contaminants and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box.
Proudly Designed, Engineered, and Made in the USA: Made with premium materials and supported by dedicated, U.S.-based customer service.
55+ Years of Proven Engine Protection: Backed by decades of filtration expertise trusted by performance enthusiasts and diesel owners.
No-Hassle Lifetime Limited Warranty: Engineered to last the life of your diesel truck.
Oversized Diesel Filter: Designed to increase airflow to help support towing, hauling, and high-demand diesel performance.
Oil-Free Dryflow® Synthetic Media: Easy-to-clean, no-oil filter that delivers long service intervals and simple maintenance for hard-working diesel trucks.
Diesel-Spec Filtration Performance: Up to 99% filtration efficiency to help protect turbocharged diesel engines in dusty, off-road, and job-site conditions.
